Study of cerium ion in (Y_(0.95)La_(0.05))_2O_3:Ce

• 作 者: 王晓纯 张慰萍 王林香 游宝贵 尹民
• 机 构: Department of Physics, University of Science and Technology of China,
• 出 处: Journal of Rare Earths
• 发表日期: 2010年04期
• 关键词: cerium Ce La luminescence sintered photoelectron excitation valence titration cu

(Y0.95La0.05)2O3: Ce3+ nano-powder was synthesized by co-precipitation method and sintered at 800 and 900 oC. All the samples were cubic phase characterized by X-ray diffraction (XRD) analysis. The samples sintered at the lower temperature exhibited luminescence. According to the distinguishable structure of Ce 3d peaks and the shift of O 1s lines in the X-ray photoelectron spectroscopy (XPS), luminescence was further confirmed to originate from Ce3+ ions. Effects of introducing La3+ into Y2O3 were discussed and it showed that under 800 oC calcining, the existing of La3+ made it more easy for Ce3+ to dope into the host lattice.

(Y0.95La0.05) 2O3: Ce3 + nano-powder was synthesized by co-precipitation method and sintered at 800 and 900 oC. All the samples were cubic phase characterized by X-ray diffraction (XRD) According to the distinguishable structure of Ce 3d peaks and the shift of O 1s lines in the X-ray photoelectron spectroscopy (XPS), luminescence was further confirmed to originate from Ce3 + ions. Effects of introducing La3 + into Y2O3 were discussed and it showed that 800 oC calcining, the existing of La3 + made it more easy for Ce3 + to dope into the host lattice.